K member notching question

I am not sure, but I do not think that it does not matter if the engine is out and you put it in from the top or not. If the oil pan needs to have a notch then it should be cut in. You will have to mock it up with a block and pan with the motor mounts attached to the K member. If all clear then you can install the engine after from the top. I have install many engines from the top with not trouble if everything clears.